It is not difficult to see that all the above mentioned models are special cases of this model.
The errors mentioned above are not difficult to resolve; but if the same wording comes out from the same polling organizations again, it would speak volumes about the agenda of the pollster or their client.
In the light of the developments mentioned above, it is not difficult to understand parents increased use of information provided by the internet regarding children, health and parenthood.
Some wouldn't even consider it "faking". It's difficult (not to mention dangerous) to get camera equipment close enough to capture the sound of, say, a polar bear skidding on ice.
To me, it looked awfully difficult, not to mention high.
"This will make decommissioning expensive and difficult, not to mention the recovery and movement of nuclear waste to higher ground".
The reason perhaps: the rugged, mountainous terrain makes it difficult, not to mention unwise, to navigate the island quickly.
It's difficult not to mention it with [the first-team coach and former England winger] John Salako in the room.
But the task of detecting those who have been subjected to it is an extremely difficult, not to mention uncomfortable, one.
Unlike many European countries, Britain has no formal identity-card system, so checking the residency rights of patients will be difficult, not to mention unpalatable.
Balancing diverse interests and trying to plot an effective course of action free from unintended consequences is bound to be difficult, (not to mention the tricky business of placating lobbyists, powerful patrons and the voters).
